diff options
Diffstat (limited to 'drivers/iommu/iova.c')
-rw-r--r-- | drivers/iommu/iova.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c index 520b8c8ae0c4..a3dbba8caa19 100644 --- a/drivers/iommu/iova.c +++ b/drivers/iommu/iova.c @@ -55,11 +55,13 @@ void free_iova_mem(struct iova *iova) } void -init_iova_domain(struct iova_domain *iovad, unsigned long pfn_32bit) +init_iova_domain(struct iova_domain *iovad, unsigned long start_pfn, + unsigned long pfn_32bit) { spin_lock_init(&iovad->iova_rbtree_lock); iovad->rbroot = RB_ROOT; iovad->cached32_node = NULL; + iovad->start_pfn = start_pfn; iovad->dma_32bit_pfn = pfn_32bit; } @@ -162,7 +164,7 @@ move_left: if (!curr) { if (size_aligned) pad_size = iova_get_pad_size(size, limit_pfn); - if ((IOVA_START_PFN + size + pad_size) > limit_pfn) { + if ((iovad->start_pfn + size + pad_size) > limit_pfn) { spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags); return -ENOMEM; } @@ -237,8 +239,8 @@ iova_insert_rbtree(struct rb_root *root, struct iova *iova) * @size: - size of page frames to allocate * @limit_pfn: - max limit address * @size_aligned: - set if size_aligned address range is required - * This function allocates an iova in the range limit_pfn to IOVA_START_PFN - * looking from limit_pfn instead from IOVA_START_PFN. If the size_aligned + * This function allocates an iova in the range iovad->start_pfn to limit_pfn, + * searching top-down from limit_pfn to iovad->start_pfn. If the size_aligned * flag is set then the allocated address iova->pfn_lo will be naturally * aligned on roundup_power_of_two(size). */ |